So since version 2014 I have been using an i7-4790K with successive GPU upgrades. Until yesterday I was using SU2019 on this system that has 32GB ram and a 2080ti GPU.
Today I built a new PC and installed SU2020 and opened the same model I was working on before and the performance is horrible, really bad.
The new system is a Ryzen 9 3950x, 64GB and the same 2080ti.
previous 4790k clocks were typically 4.3ghz, Current 3950x is about he same on all cores.
What is going on !?!?